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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 1565268343

Certificate GIA 1565268343

Diamond specifications and retailer prices

From $3,368 AUD
As of November 5, 2026
Save $2,519 AUD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,887 AUD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1565268343. Listed at 15 retailers as of November 3, 2026, with prices from $3,368 to $5,887, a $2,519 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,887. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.67°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 1565268343
Dimensions10.05 × 5.41 × 3.52 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.05 mm5.41 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565268343
Side View
Table 59.0%Crown 40.67°Girdle: THK-VTKPavilion 40.27°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,368 AUD|Low: $3,349 AUD|High: $6,244 AUD|Avg: $4,316 AUD|-6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$3,368 AUD
Retailer 12$3,574 AUD
Retailer 13$3,614 AUD
Retailer 11$3,624 AUD
Retailer 10$3,637 AUD
Retailer 6$3,850 AUD
Retailer 7$3,890 AUD
Retailer 5$3,960 AUD
Retailer 3$4,273 AUD
Retailer 14$4,308 AUD
Retailer 4$4,448 AUD
Retailer 9$4,563 AUD
Retailer 8$4,678 AUD
Retailer 2$5,545 AUD
Wholesale Diamonds Direct$5,887 AUD

27 data points across 15 retailers

15 retailers$3,368 AUD to $5,887 AUD

A
Cheapest Retailer
-
$3,368 AUD
B+
Retailer 2
-
$3,574 AUD
View
B+
Retailer 3
-
$3,614 AUD
View
B+
Retailer 4
-
$3,624 AUD
View
B+
Retailer 5
-
$3,637 AUD
View
Retailer 6
-
$3,850 AUD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$3,890 AUD
View
B+
Retailer 8
-
$3,960 AUD
View
B+
Retailer 9
-
$4,273 AUD
View
B+
Retailer 10
-
$4,308 AUD
View
B
Retailer 11
-
$4,448 AUD
View
B
Retailer 12
-
$4,563 AUD
View
B
Retailer 13
-
$4,678 AUD
View
B
Retailer 14
-
$5,545 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
383029584 · Nov 3
$5,887 AUD
$4,045 USD
View
14 more retailers have this diamond
Prices start from $3,368 AUDSave up to $2,519 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.20ct Marquise
$3,368 AUD